Tag

VLAN

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Efficient Ops
Efficient Ops
Dec 15, 2024 · Fundamentals

Unlocking Network Basics: How VLANs, Routers, and DNS Shape Modern LANs

This article explains the fundamentals of VLANs, single‑arm routing, layer‑3 switches, gateways, DNS, MAC addresses, and subnet masks, using clear analogies and examples to show how network segmentation and routing enable efficient communication within and between local networks.

DNSMAC addressRouting
0 likes · 11 min read
Unlocking Network Basics: How VLANs, Routers, and DNS Shape Modern LANs
Architects' Tech Alliance
Architects' Tech Alliance
Sep 10, 2024 · Fundamentals

Understanding Layer 2 and Layer 3 Switches, VLANs, and ARP

This article explains the differences between Layer 2 and Layer 3 switches, how ARP resolves MAC addresses, the impact of collisions and broadcast domains, and how VLANs and switch port configurations can be used to segment and secure modern Ethernet networks.

ARPLayer 2 SwitchLayer 3 Switch
0 likes · 14 min read
Understanding Layer 2 and Layer 3 Switches, VLANs, and ARP
Efficient Ops
Efficient Ops
May 5, 2024 · Fundamentals

Master Computer Network Fundamentals with 38 Comprehensive Mind Maps

This article presents a curated collection of 38 detailed mind maps that systematically cover essential computer network concepts—from transmission media and Ethernet frames to IP addressing, routing protocols, VLANs, and VPNs—helping readers visualize and master the fundamentals efficiently.

Computer NetworksIPv6Mind Maps
0 likes · 5 min read
Master Computer Network Fundamentals with 38 Comprehensive Mind Maps
Efficient Ops
Efficient Ops
Sep 18, 2023 · Fundamentals

Understanding VLANs, Routing, and Core Network Concepts: A Beginner’s Guide

This article explains VLAN fundamentals, how single‑arm routing and layer‑3 switches enable inter‑VLAN communication, the role of gateways, DNS resolution, MAC addresses, and subnet masks, using clear analogies and diagrams to help readers grasp essential networking concepts.

DNSMAC addressRouting
0 likes · 11 min read
Understanding VLANs, Routing, and Core Network Concepts: A Beginner’s Guide
Practical DevOps Architecture
Practical DevOps Architecture
Feb 13, 2023 · Fundamentals

H3C Enterprise Campus Network Video Course List

This article provides a comprehensive list of 54 H3C campus‑network tutorial videos covering VLAN, STP/RSTP/MSTP, link aggregation, SmartLink, RRPP, VRRP, IRF, multicast, IGMP, AAA, port access control, SSH, SNMP, LLDP, NTP and a full lab, useful for network engineers seeking practical knowledge.

Campus NetworkH3CSTP
0 likes · 3 min read
H3C Enterprise Campus Network Video Course List
Efficient Ops
Efficient Ops
Aug 14, 2022 · Fundamentals

Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS

This article explains the concept of VLANs, how they segment broadcast domains like classroom groups, describes single‑arm routing and layer‑3 switches for inter‑VLAN communication, and covers essential networking components such as gateways, DNS, MAC addresses, IP addressing, and subnet masks, illustrating each with clear analogies.

DNSMAC addressVLAN
0 likes · 12 min read
Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS
Architects' Tech Alliance
Architects' Tech Alliance
Jun 2, 2022 · Fundamentals

Understanding Layer 2 and Layer 3 Switches: Features, VLANs, and Configuration

This article explains the operating principles, key differences, and practical applications of Layer 2 and Layer 3 switches, covering MAC‑based forwarding, IP routing, ARP learning, broadcast domains, VLAN segmentation, and step‑by‑step configuration commands for enterprise networks.

ARPLayer2 SwitchLayer3 Switch
0 likes · 15 min read
Understanding Layer 2 and Layer 3 Switches: Features, VLANs, and Configuration
Efficient Ops
Efficient Ops
May 9, 2022 · Fundamentals

Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS

This article explains the concept of VLANs, illustrates how they segment networks like classroom groups, describes single‑arm routing and layer‑3 switches for inter‑VLAN communication, and covers related fundamentals such as gateways, DNS, MAC addresses, and subnet masks, providing clear analogies and diagrams for beginners.

DNSMAC addressVLAN
0 likes · 12 min read
Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS
Cloud Native Technology Community
Cloud Native Technology Community
Jan 5, 2022 · Operations

Understanding Open vSwitch Flow Tables: Concepts, Match Fields, Actions, and Practical Commands

This article, the second part of the “Open vSwitch Full Analysis” series, explains the structure and operation of OVS flow tables, detailing match fields, actions, priorities, timeouts, and provides practical ovs‑ofctl command examples for configuring flows, VLANs, and tunnels such as VXLAN and GRE.

Flow TableGREOpen vSwitch
0 likes · 16 min read
Understanding Open vSwitch Flow Tables: Concepts, Match Fields, Actions, and Practical Commands
Cloud Native Technology Community
Cloud Native Technology Community
Jan 5, 2022 · Cloud Native

Implementing Flat, VLAN, and VXLAN Networks with Open vSwitch and Docker

This article demonstrates how to build flat, VLAN, and VXLAN networking topologies using Open vSwitch integrated with Docker containers, covering architecture concepts, required host configurations, step‑by‑step command sequences, and connectivity testing across single‑host and multi‑host environments.

DockerNetwork VirtualizationOpen vSwitch
0 likes · 12 min read
Implementing Flat, VLAN, and VXLAN Networks with Open vSwitch and Docker
Java Architect Essentials
Java Architect Essentials
Aug 24, 2021 · Fundamentals

How a Dormitory Ethernet Hack Created a VLAN Storm: A Tale of Network Loops and STP

A college student wired a neighbor's Ethernet cable into his dorm room, unintentionally creating a network loop that triggered a broadcast storm across the entire building, and then explored why loops cause storms, how STP mitigates them, and improvised covert switching solutions.

STPVLANbroadcast storm
0 likes · 9 min read
How a Dormitory Ethernet Hack Created a VLAN Storm: A Tale of Network Loops and STP
Architects' Tech Alliance
Architects' Tech Alliance
Jan 26, 2021 · Fundamentals

Understanding Network Switches: Definitions, Functions, Classifications, and Management Features

This article provides a comprehensive overview of network switches, covering their definition, MAC‑based operation, port expansion, classification by manageability and OSI layer, various management methods (Web, CLI, SNMP), product specifications, application scenarios, and key features such as VLAN, port isolation, aggregation, loop detection, ACL, ARP protection, DHCP services, and routing capabilities.

ACLDHCPLayer 2
0 likes · 9 min read
Understanding Network Switches: Definitions, Functions, Classifications, and Management Features
Practical DevOps Architecture
Practical DevOps Architecture
Nov 27, 2020 · Fundamentals

Configuring VLANs and Inter‑VLAN Routing with a Layer 3 Switch

This guide explains how to set up separate VLANs for technical and sales departments, configure PCs and both layer‑2 and layer‑3 switches, assign IP addresses, and verify inter‑VLAN communication using routing on a layer‑3 switch.

Inter-VLAN RoutingLayer 3 SwitchVLAN
0 likes · 5 min read
Configuring VLANs and Inter‑VLAN Routing with a Layer 3 Switch
Practical DevOps Architecture
Practical DevOps Architecture
Nov 10, 2020 · Information Security

Restricting Internet Access for Specific Hosts Using MAC‑Based ACL on a Router

This guide explains how to configure a router to block selected LAN hosts from accessing the Internet by applying source‑MAC‑address based ACLs while still permitting those hosts to reach the gateway, using VLAN, traffic classifiers, and traffic policies.

ACLMAC addressNetwork Security
0 likes · 5 min read
Restricting Internet Access for Specific Hosts Using MAC‑Based ACL on a Router
Architects' Tech Alliance
Architects' Tech Alliance
Aug 26, 2020 · Fundamentals

Fundamentals of Network Switches: Overview, Types, Performance Metrics, Interfaces, VLANs, and Multilayer Switching

This article provides a comprehensive overview of network switches, covering their basic concepts, classifications, performance indicators, interface and link methods, virtual LANs, multilayer switching, and product introductions, while also including promotional information for related technical e‑books.

Hardware fundamentalsIT infrastructureVLAN
0 likes · 2 min read
Fundamentals of Network Switches: Overview, Types, Performance Metrics, Interfaces, VLANs, and Multilayer Switching
Efficient Ops
Efficient Ops
Jun 14, 2020 · Fundamentals

Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS

This article explains the concept of VLANs, how they segment networks like classroom groups, the role of single‑arm routing and layer‑3 switches for inter‑VLAN communication, and clarifies related fundamentals such as gateways, DNS, MAC addresses, IP addressing, and subnet masks.

DNSRoutingVLAN
0 likes · 12 min read
Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS
Practical DevOps Architecture
Practical DevOps Architecture
Dec 11, 2018 · Operations

Configuring Inter‑VLAN Routing on Two Three‑Layer Switches Using Static Routes

This guide demonstrates how to enable communication between hosts on different subnets within the same VLAN across two three‑layer switches by configuring VLANs, assigning IP addresses to Vlanif interfaces, and adding static routes on each device.

VLANnetworkingoperations
0 likes · 4 min read
Configuring Inter‑VLAN Routing on Two Three‑Layer Switches Using Static Routes